Truss



(No Model.)

0. E. MQUANDLISS.

. muss.

No. 436,721. Patented Sept. 16, 1890.,

2 2' i l ifimow 1-73] g Swvenfoz:

p754 @513 m ter 149 13 UNITED, STATES PATENT OFFICE.

CHARLES E. MCCANDLISS, OF ATLANTA, GEORGIA.

, TRUSS.

SPECIFICATION forming part of Letters I-atent No. 436,721, datedSeptember 16, 1890.

Application filed June 2, 1890. $erial No. 354,052- (No model.)

To all whom it may concern:

Be itknown that 1, CHARLES E. MoGAND- LISS, acitizen of the UnitedStates, and a resident of Atlanta, in the county of Fulton and State ofGeorgia, have invented certain new and useful Improvements in Trusses;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled-in theart to which it appertains to make and use the same, reference beinghadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

This invention relates to surgical appliances, and more particularly tothat class of such devices known as trusses or supporters, the objectbeing to so improve such devices as to render them sure in theengagement of parts and hence secure against slipping thereof, which isextremely dangerous in cases of hernia, to which this class of device isparticularly applicable, and to render them more comfortable to'thewearer, the invention consisting of several novel and useful elements,which will be hereinafter fully specified, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a view slightly in perspectiveof a truss, showing a front view thereof. Fig. 2 is a view in sideelevation of the pad, its stem, and the cap securing same to thebody-band. Fig. 3 is a longitudinal vertical section of Fig. 2,

showing the interior arrangement of parts.

Fig. i is a view from the back of a portion of the truss, showing thespring extension-piece and the back of the back pad. Fig. 5 is atop viewof Fig. 4. Fig. 6 is a detail view in section of the body-band, showinga part of its surface dentated by small longitudinally-extending ridgesand grooves. Fig. 7 is a detail showing the correspondingly dentatedportion of the cap and its conformation.

In the figures like reference-marks indicate corresponding parts in theseveral views.

The elastic body-band Ais formed of a steel spring, the ends thereofapproaching at the back and being connected by the extensionlink B,which is formed of a socket b and a pin 1) sliding therein, itswithdrawal being resisted by the spring 6 suitably arranged inconnection therewith. This spring allows the body-band to expand andcontract in size and so affords means for the adaptation of the truss tohip and other motions of the body, which leaves the retaining-pads Dindependent of and unaffected by this motion. The ends of the bodybandand extension-link are isolated from contact with the body by means ofthe pad 0, which in use will be stationary on the body, and the band Aand extensionlink B will have play thereon, any slipping being preventedby straps 0, under which the ends of the band A pass. The band may havea sheathing a, of soft leather or fabric, extending the desired distancethereon, for the purpose of preventing metallic contact with the body.

The retaining-pad D may be of any form, so long as it has a stem d andbar D swiveled thereto, which construction is preferred. The bar (1 hasa slot (:1 having a shoulder 61 into which enters the hook e of the capE, through which the screw 6 passes, being elongated and being furtherfrom the center of the bodyband A thanis the bearing of the hook e inthe slot d by reason of which great compression can be brought to bear011 the said bodyband without danger of stripping or breaking the screw,which is a great objection to all of the constructions heretoforeemployed, and it is well understood that any slippage at this point isvery dangerous to the patient, by reason of a probable enlargement ofthe hernia, renderingit frequently incurable. To further insurenon-slipping of the pad on the bodyband, I dentate or serrate a part ofthe surface of the body-band A and the cap E, as best shown in Figs. 6and 7, with small ridges and grooves, extending longitudinally of theband A and being cut or indented directly into the metal composing thesaid band, and the corresponding ridges and grooves in the cap E fitdirectly into these at any angle in which the pad may be required, andit is thus obvious that there are no intermediate parts to slip andendanger the patient; also, by reason of this construction, the strengthof the bodyband is left unimpaired and all danger of breaking obviated,which is obviously a great advantage also as regards its safety to thepatient.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is

In a truss, the combination of the back pad In testimony whereofIhereunto afiix my sig- O with the straps a, through which pass thenature in presence of two witnesses. ends of the body-band, the rod b,attached to one end of the body-band, and the hollow CHARLES MCOANDLISS'5 sleeve b, attached to the other end, and the Witnesses:

surrounding coil-spring b substantially as A. P. WOOD,

shown and described. S. M. WOOD.

